About This Race

The Big Tex Backyard Ultra is a last-runner-standing event held at Stephen F. Austin State Park near Houston, Texas. Runners complete a 4.17 mile yard every hour on the hour until only one remains, on a network of wide, well-maintained, primarily crushed-gravel trails with minimal elevation change. The 2026 edition also adds a Last Rucker Standing division and a free kids run.

Course & Race Day Details

Flat course
Elevation
Flat Course
Trail surface
Surface
Trail Surface
T-Shirt
Race Swag
Last Runner Standing, Last Rucker Standing: Swag Included | Lil Tex Kids K: T-Shirt

Hydration Support

One fully stocked aid station at the Start/Finish line with water, ice, Gatorade, soda, electrolytes, and food.

Awards

The winner will win a dollar for every mile they run and the seconder will win a dollar for every yard they finish!

Race Weekend Logistics

Medical Support

There will be a timing tent, an aid station tent, and a medical treatment area.

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Choose Your Distance

Last Runner Standing
$140.00
Increases Oct 19
Register
Last Rucker Standing
We are looking at a ruck loop of between 2.5 and 3.1 miles, stay tuned! Standard weight rules: If you weigh under 150lbs, a 20lb ruck, if you weigh over 150lbs, a 30lb weight. No ruck or weight type requirement as long as the weight remains constant throughout the event.
$140.00
Increases Oct 19
Register
Lil Tex Kids K
14 and Under, free park entry and race bib with a finishers ribbon/medal. Does not include a shirt.
$0.00
Increases Nov 07
Register